The Tor Browser: gfx/thebes/gfxQtPlatform.cpp@6474c204b198 (annotated)

gfx/thebes/gfxQtPlatform.cpp@6474c204b198 (annotated)

gfx/thebes/gfxQtPlatform.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include <QPixmap>
 #include <QWindow>
 #ifdef MOZ_X11
 #include <qpa/qplatformnativeinterface.h>
 #include <qpa/qplatformintegration.h>
 #endif
 #include <QGuiApplication>
 #include <QScreen>
 #include "gfxQtPlatform.h"
 #include "gfxFontconfigUtils.h"
 #include "mozilla/gfx/2D.h"
 #include "cairo.h"
 #include "gfxImageSurface.h"
 #include "gfxQPainterSurface.h"
 #include "nsUnicodeProperties.h"
 #include "gfxPangoFonts.h"
 #include "gfxContext.h"
 #include "gfxUserFontSet.h"
 #include "nsUnicharUtils.h"
 #include "nsMathUtils.h"
 #include "nsTArray.h"
 #ifdef MOZ_X11
 #include "gfxXlibSurface.h"
 #include "prenv.h"
 #endif
 #include "qcms.h"
 #include "mozilla/Preferences.h"
 using namespace mozilla;
 using namespace mozilla::unicode;
 using namespace mozilla::gfx;
 gfxFontconfigUtils *gfxQtPlatform::sFontconfigUtils = nullptr;
 #ifdef MOZ_X11
 bool gfxQtPlatform::sUseXRender = true;
 #endif
 static gfxImageFormat sOffscreenFormat = gfxImageFormat::RGB24;
 gfxQtPlatform::gfxQtPlatform()
 {
 #ifdef MOZ_X11
     sUseXRender = mozilla::Preferences::GetBool("gfx.xrender.enabled");
 #endif
     if (!sFontconfigUtils)
         sFontconfigUtils = gfxFontconfigUtils::GetFontconfigUtils();
     mScreenDepth = qApp->primaryScreen()->depth();
     if (mScreenDepth == 16) {
         sOffscreenFormat = gfxImageFormat::RGB16_565;
     }
     uint32_t canvasMask = BackendTypeBit(BackendType::CAIRO) | BackendTypeBit(BackendType::SKIA);
     uint32_t contentMask = BackendTypeBit(BackendType::CAIRO) | BackendTypeBit(BackendType::SKIA);
     InitBackendPrefs(canvasMask, BackendType::CAIRO,
                      contentMask, BackendType::CAIRO);
 }
 gfxQtPlatform::~gfxQtPlatform()
 {
     gfxFontconfigUtils::Shutdown();
     sFontconfigUtils = nullptr;
     gfxPangoFontGroup::Shutdown();
 }
 #ifdef MOZ_X11
 Display*
 gfxQtPlatform::GetXDisplay(QWindow* aWindow)
 {
     return (Display*)(qApp->platformNativeInterface()->
         nativeResourceForScreen("display", aWindow ? aWindow->screen() : qApp->primaryScreen()));
 }
 Screen*
 gfxQtPlatform::GetXScreen(QWindow* aWindow)
 {
     return ScreenOfDisplay(GetXDisplay(aWindow),
         (int)(intptr_t)qApp->platformNativeInterface()->
             nativeResourceForScreen("screen", aWindow ? aWindow->screen() : qApp->primaryScreen()));
 }
 #endif
 already_AddRefed<gfxASurface>
 gfxQtPlatform::CreateOffscreenSurface(const IntSize& size,
                                       gfxContentType contentType)
 {
     gfxImageFormat imageFormat = OptimalFormatForContent(contentType);
     nsRefPtr<gfxASurface> newSurface =
         new gfxImageSurface(gfxIntSize(size.width, size.height), imageFormat);
     return newSurface.forget();
 }
 already_AddRefed<gfxASurface>
 gfxQtPlatform::OptimizeImage(gfxImageSurface *aSurface,
                              gfxImageFormat format)
 {
     /* Qt have no special offscreen surfaces so we can avoid a copy */
     if (OptimalFormatForContent(gfxASurface::ContentFromFormat(format)) ==
         format) {
         return nullptr;
     }
     return gfxPlatform::OptimizeImage(aSurface, format);
 }
 nsresult
 gfxQtPlatform::GetFontList(nsIAtom *aLangGroup,
                            const nsACString& aGenericFamily,
                            nsTArray<nsString>& aListOfFonts)
 {
     return sFontconfigUtils->GetFontList(aLangGroup, aGenericFamily,
                                          aListOfFonts);
 }
 nsresult
 gfxQtPlatform::UpdateFontList()
 {
     return sFontconfigUtils->UpdateFontList();
 }
 nsresult
 gfxQtPlatform::ResolveFontName(const nsAString& aFontName,
                                 FontResolverCallback aCallback,
                                 void *aClosure,
                                 bool& aAborted)
 {
     return sFontconfigUtils->ResolveFontName(aFontName, aCallback,
                                              aClosure, aAborted);
 }
 nsresult
 gfxQtPlatform::GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName)
 {
     return sFontconfigUtils->GetStandardFamilyName(aFontName, aFamilyName);
 }
 gfxFontGroup *
 gfxQtPlatform::CreateFontGroup(const nsAString &aFamilies,
                                const gfxFontStyle *aStyle,
                                gfxUserFontSet* aUserFontSet)
 {
     return new gfxPangoFontGroup(aFamilies, aStyle, aUserFontSet);
 }
 gfxFontEntry*
 gfxQtPlatform::LookupLocalFont(const gfxProxyFontEntry *aProxyEntry,
                                 const nsAString& aFontName)
 {
     return gfxPangoFontGroup::NewFontEntry(*aProxyEntry, aFontName);
 }
 gfxFontEntry*
 gfxQtPlatform::MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,
                                  const uint8_t *aFontData, uint32_t aLength)
 {
     // passing ownership of the font data to the new font entry
     return gfxPangoFontGroup::NewFontEntry(*aProxyEntry,
                                            aFontData, aLength);
 }
 bool
 gfxQtPlatform::SupportsOffMainThreadCompositing()
 {
 #if defined(MOZ_X11) && !defined(NIGHTLY_BUILD)
   return (PR_GetEnv("MOZ_USE_OMTC") != nullptr) ||
          (PR_GetEnv("MOZ_OMTC_ENABLED") != nullptr);
 #else
   return true;
 #endif
 }
 bool
 gfxQtPlatform::IsFontFormatSupported(nsIURI *aFontURI, uint32_t aFormatFlags)
 {
     // check for strange format flags
     NS_ASSERTION(!(aFormatFlags & gfxUserFontSet::FLAG_FORMAT_NOT_USED),
                  "strange font format hint set");
     // accept supported formats
     // Pango doesn't apply features from AAT TrueType extensions.
     // Assume that if this is the only SFNT format specified,
     // then AAT extensions are required for complex script support.
     if (aFormatFlags & (gfxUserFontSet::FLAG_FORMAT_WOFF     |
                         gfxUserFontSet::FLAG_FORMAT_OPENTYPE |
                         gfxUserFontSet::FLAG_FORMAT_TRUETYPE)) {
         return true;
     }
     // reject all other formats, known and unknown
     if (aFormatFlags != 0) {
         return false;
     }
     // no format hint set, need to look at data
     return true;
 }
 void
 gfxQtPlatform::GetPlatformCMSOutputProfile(void *&mem, size_t &size)
 {
     mem = nullptr;
     size = 0;
 }
 int32_t
 gfxQtPlatform::GetDPI()
 {
     return qApp->primaryScreen()->logicalDotsPerInch();
 }
 gfxImageFormat
 gfxQtPlatform::GetOffscreenFormat()
 {
     return sOffscreenFormat;
 }
 int
 gfxQtPlatform::GetScreenDepth() const
 {
     return mScreenDepth;
 }
 TemporaryRef<ScaledFont>
 gfxQtPlatform::GetScaledFontForFont(DrawTarget* aTarget, gfxFont* aFont)
 {
     return GetScaledFontForFontWithCairoSkia(aTarget, aFont);
 }

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gfx/thebes/gfxQtPlatform.cpp@6474c204b198 (annotated)

gfx/thebes/gfxQtPlatform.cpp